Improvement in metallic cans or vessels



'ol P.MAXP1BLD. Metallic Can url Vesselr.

No. 196,758. "Pafenredfwow 6,1871.

CHARLES l?. MAXFIELD, OF FAIRHAVEN, ASSIGNOR TO EDWARD 'l. UU VELIA,

QE NEw EEDEoED, MASSACHUSETTS.

IMPROVEMENT IN METALLIC CANS VESSELS.

Specification forming part of Letters Patentlhro; 196,758, datedNovember 6, 1877 application filed October 11, 1877.

To all whom it may concern:

Be it known that I, CHARLES P. MAXELELD, of Fairhaven, Massachusetts,have invented certain new and useful Improvementsiin Metallic Gans orVessels, of which thefollowing is a specification:

This invention relates to the construction of metallic cans or vessels,and more particu` larly to the manner of uniting the heads or ends withthe body of such cans or vessels.

As heretofore constructed, metallic cans or vessels have been founddeficient in that the ends or heads, whether or not molten solder wasused in connection with the joints or seams, were liable to spring offor part asunder, so as to permit leakage of their contents, and thusoccasion great loss in or danger to the cargoes contained therein. j

The object of my present invention is to overcome this objection, and atthe same time to furnish a rigid, cheap, durable7 and airtight vessel,without any excessively protruding flanges, which are liable to be bentin, and thus open the seams-in other words, cans or vessels well adaptedto contain liquids of any description, however dangerous they may be,such as petroleum or other hydrocarbon iiuids.

My said invention consists in a peculiar mode, hereinafter described, offorming and uniting the ends or heads of metallic cans or vessels withthe sides or bodies thereof, and in the production of cans in which thesides, tops, and bottoms are united or joined together by the means andin the manner hereinafter described.

To illustrate my said invention, I have shown in the accompanyingdrawings, in Figure l, a perspective view of a can constructed inaccordance with my said invention. Figs. 2, 3, and 4 are diagrams orsectional linesof that part of the head and side which forms the joint,and which shows the progress or stages in the formation of the-same.

In said drawings,` A is the body of the can; B, the head 5 and (l theoriiice for filling the can.

To put the parts of the can together I proceed as follows: The can-bodyis made, as is usual, of one sheet of meta-1, bent along three verticallines, atright angles, the fourthangle 1 being made by the union, by lapor hook joint,

of thel outer ends of the sheet. The upper and lower` ends are allowedtoremain iush with the sides or unbent until after the heads are 'put intheir respective places on the body. The heads B are made of flat piecesof metal, somewhat larger than the horizontal area or the opening of thecan-body. The edges of the heads are then bent downward at right anglesto the surface, to facilitate which the sheet is previously cut out atthe angles. The thus downwardly-bent flange is,.a short distance fromthe bent edge, bent upward again, the

that the single flange shall project from and above the side or body ofthe can, while the latter, in its turn, projects above the top or outersurface of the head.

The next operation consists in the folding down or bending inwardly atright angles of the two projecting flanges, so as to lie flat upon thehead, as shown in Fig. 3.

It will be noticed that the flange d, which is part of the head, islarger than the flange c of the body, and therefore it projects fromunder the said iiange c toward the center of the can. l

The last and nal operation now consists in bending the projecting partof the iiange d over the flange c, and thus confining the la'tter withinits fold.

It is obvious that the corners at the ends of the can-body are,previously to being bent, vsuitably cut down to a point corresponding tothe surface of the heads, so as to insure their f forming, when bent,miters in a workmanlike manner, as shown in the drawing at c.

After'the heads or ends are thus made and united, molten solder isapplied, for the purpose of sealing the joints or seams.

I have described the manner in which this invention may be carried outin the most practical form. It will be miderstood, however,

that variations may be applied without departure oni niyinvention. Thusthe flange el may be bent over the flange c before the twoV ilanges arebent down against the head of the can. In this instance the order of theoperation is only inverted; but I prefer to proceed as first described.i

The inwardly double ange serves to stiften the heads or ends of the can,and also forms a rm support for clamps to hold the heads or endstogether while the projecting edges are being bent or pressed upon theheads 0rV -to the sides, to be iiat upon the head, constitutin g astiffening and protecting frame to the can, as herein shown anddescribed.

2. The union of the body of a can with the heads or ends thereof bymeans of a seam, consisting of the combination, with an internal flangeformed at right angles to the body of the can, of a twofold doublelap-joint on the head, the one lying internally against the side orbody, the other externally against the respective heads ofthe can, thelatter holding conned the flange on the body, substantially as shown andset forth.

3. The angular interior and exterior double flange formed on the headsor ends of la inetallic can or vessel, forming a union with thecan-body, in the manner and for the purposes herein speciied.

In testimony whereof I have hereunto signed my name this 27th day ofAugust, A. D. 187i1 OHAS. P. MAXFIELD.` Witnesses: y

CnAnLns C. SAYER, EDWARD A. SAYER.

